The TTL is applied to the cells on insert. Changing it doesn't change the
TTL on data that was inserted previously.

On Sun, Oct 1, 2017 at 6:23 AM Gábor Auth <auth.ga...@gmail.com> wrote:

> Hi,
>
> The `alter table number_item with gc_grace_seconds = 3600;` is sets the
> grace seconds of tombstones of the future modification of number_item
> column family or affects all existing data?
>
> Bye,
> Gábor Auth
>
>

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